321214133330243 has 4 divisors (see below), whose sum is σ = 321283107810600. Its totient is φ = 321145158849888.

The previous prime is 321214133330219. The next prime is 321214133330257. The reversal of 321214133330243 is 342033331412123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321214133330243 - 2⁶ = 321214133330179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321214133330203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34487233193 + ... + 34487242506.

It is an arithmetic number, because the mean of its divisors is an integer number (80320776952650).

Almost surely, 2^{321214133330243} is an apocalyptic number.

321214133330243 is a deficient number, since it is larger than the sum of its proper divisors (68974480357).

321214133330243 is an equidigital number, since it uses as much as digits as its factorization.

321214133330243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68974480356.

The product of its (nonzero) digits is 93312, while the sum is 35.

Adding to 321214133330243 its reverse (342033331412123), we get a palindrome (663247464742366).

The spelling of 321214133330243 in words is "three hundred twenty-one trillion, two hundred fourteen billion, one hundred thirty-three million, three hundred thirty thousand, two hundred forty-three".